CALCULATE MAD & MSE

PERIOD ACTUAL FORECAST ERROR $|$ERROR $||$ERROR $|2$

$1103106-339$

$2114111339$

$3101$ A $-339$

$41071034416$

$5110112-2$ B $4$

$6109110-111$

SUM $1648$

n $=6$ C$($numerator $=?)$

MAD$=?$ MSE$=?$

D E